The high‐resolution far infrared spectrum of a van der Waals stretching vibration: The ν3 band of Ar–HCl

The ν1 fundamental band of DNCO has been observed for the first time under high resolution. The band origin for this deuterium–nitrogen stretching vibration is found to be at 2637.198 cm−1, rather distant from the previously reported value of 2634.9 cm−1. Eighteen subbands have been analyzed and term values for both ground and ν1 states with K up to 6 have been obtained. Effective rotational constants Bν and centrifugal distortion constants Dν and Hν have also been determined. Interaction is observed with the 2ν3 vibration which has a band origin around 2640 cm−1. Interesting perturbations are observed for the K = 0 and K = 4 levels of ν1.

Download Full-text

Spectres infrarouge et Raman de KSCN à l'état cristallin

Canadian Journal of Chemistry ◽

10.1139/v67-271 ◽

1967 ◽

Vol 45 (14) ◽

pp. 1677-1684 ◽

Cited By ~ 12

Author(s):

R. Savoie ◽

M. Pézolet

Keyword(s):

Raman Spectrum ◽

Infrared Spectrum ◽

Room Temperature ◽

Far Infrared ◽

Potassium Thiocyanate ◽

Factor Group ◽

Crystalline Phases ◽

Stretching Vibration ◽

Lattice Modes

The Raman spectrum of potassium thiocyanate has been recorded at various temperatures between − 195 and 185 °C. The predicted factor-group splitting of the C—N stretching vibration in the crystal at room temperature has been observed. The spectra of the two crystalline phases differ mainly in the lattice region. The far-infrared spectrum has also been recorded, and the existence of lattice modes at 25–30 cm−1 is shown to be doubtful.

Download Full-text

Very high-resolution Synchrotron radiation far infrared spectrum of C-13 methanol arising from the ground torsional vibrational state and evidence of avoided crossing due to ΔK=4 interaction

Infrared Physics & Technology ◽

10.1016/j.infrared.2021.103799 ◽

2021 ◽

pp. 103799

Author(s):

Indranath Mukhopadhyay ◽

B.E. Billinghurst

Keyword(s):

High Resolution ◽

Synchrotron Radiation ◽

Infrared Spectrum ◽

Vibrational State ◽

Far Infrared ◽

Avoided Crossing ◽

Very High

Download Full-text

Tunable far infrared laser spectroscopy of van der Waals bonds: The intermolecular stretching vibration and effective radial potentials for Ar–H2O

The Journal of Chemical Physics ◽

10.1063/1.458459 ◽

1990 ◽

Vol 92 (1) ◽

pp. 169-177 ◽

Cited By ~ 72

Author(s):

R. C. Cohen ◽

Kerry L. Busarow ◽

Y. T. Lee ◽

R. J. Saykally

Keyword(s):

Laser Spectroscopy ◽

Van Der Waals ◽

Far Infrared ◽

Infrared Laser ◽

Far Infrared Laser ◽

Infrared Laser Spectroscopy ◽

Stretching Vibration

Download Full-text

The High Resolution Far Infrared Spectrum of Diacetylene,Obtained with a Michelson Interferometer

Zeitschrift für Naturforschung A ◽

10.1515/zna-1973-0723 ◽

1973 ◽

Vol 28 (7) ◽

pp. 1179-1185 ◽

Cited By ~ 11

Author(s):

F. Winther

Keyword(s):

High Resolution ◽

Infrared Spectrum ◽

Gas Phase ◽

Data Reduction ◽

Path Length ◽

Reduction Method ◽

Variable Temperature ◽

Michelson Interferometer ◽

Far Infrared ◽

Data Reduction Method

A commercial interferometer has been modified for high resolution gas phase work by addition of a variable temperature cell of 3 m path length. The data reduction method is described, and examples of the performance are given. Two rotation-vibration bands of diacetylene, ν9 and ν7-ν9, have been analyzed to yield ν9=220.139(5), ν7=482.13(1), and B0 = 0.14649(7) cm-1.

Download Full-text